TENGA FLEX Rocky Black is a reusable manual stroker with a flexible black spiral-ribbed casing, a removable elastomer sleeve and an air hole that changes the internal vacuum. Squeeze or twist the casing to change how the sleeve moves while stroking. The product has no motor, battery, app or charger.
Verified product specifications
| Store and supplier SKU | 68951 |
|---|---|
| Maker model | FLX-002 |
| EAN | 4560220555873 |
| Product size | 6.5 by 2.91 by 2.91 inches |
| Reference insertion length | 5.5 inches |
| Reference insertion width | 1.77 inches |
| Product weight | 10.9 ounces |
| Materials | Elastomer sleeve; the official manual also lists PVC and polypropylene in the complete assembly |
| Operation | Manual; squeeze or twist the casing and uncover or cover the air hole to change sensation |
| Care design | Removable invertible sleeve with a cap that converts into a drying stand |
| Included lubricant | TENGA Lotion Regular, 0.34 fluid ounce |
The insertion measurements are manufacturer references, not a guaranteed fit. Bodies, lubrication and comfort vary. The stroker buyer guide explains how to compare manual formats, opening size, usable length, texture and cleaning access.
Fit and first-use check
Inspect the opening and sleeve before use. Add lubricant to the entry and inside the sleeve before insertion. Start slowly and do not force the product past resistance. If the opening feels too tight, the sleeve folds sharply or the casing cannot move comfortably, stop rather than adding pressure.
Keep the air hole uncovered during the initial fit check. Covering it increases vacuum and changes the twisting action, so test that feature only after the sleeve feels comfortable. Uncover the air hole to release vacuum before removal. Stop immediately for pain, numbness, coldness, marked color change, loss of sensation, skin pinching or discomfort that does not resolve promptly.
How the FLEX mechanism works
- Remove the stand cap from the bottom of the product.
- Apply lubricant to the insertion point and inside the elastomer sleeve.
- Insert slowly while keeping the air hole accessible.
- Squeeze or twist the flexible casing to change pressure and how the spiral-ribbed body moves.
- Briefly cover the air hole to increase the internal vacuum. Uncover it whenever you want less suction or before removal.
Use one controlled change at a time so you can tell whether pressure, vacuum or twisting is affecting comfort. Do not pull on the sleeve opening, overstretch the sleeve or use the product if the casing, seam or removable insert is damaged.
Lubricant choice
The current package includes a small amount of TENGA Lotion Regular. For additional lubricant, a plain water-based personal lubricant is the conservative choice for the elastomer sleeve and is easier to rinse. Do not assume an oil-based, silicone-based, numbing, warming or flavored formula is compatible unless the exact instructions packed with the product approve it. Review the water-based lubricant guide and materials and care guide.
Cleaning and complete drying
- Remove the internal elastomer sleeve from the casing after use.
- Fully invert the sleeve and wash the inside and outside under running lukewarm water with mild soap.
- Rinse away lubricant, soap and body-fluid residue, then pat the sleeve with a clean towel or cloth.
- Invert the stand cap and place the sleeve on it so air can reach the interior.
- Let every surface dry completely before returning the sleeve to the casing and closing the cap.
Do not boil the sleeve, wash it with hot water or leave it in hot or cold water for a long period. The official manual also excludes cleansers, alcohol, strongly acidic or alkaline products, corrosives and solvents because they can damage the material. The cleaning and storage guide provides a reusable routine.
Storage, sharing and replacement
Once the sleeve is completely dry, return it to the casing in the orientation shown in the official instructions, restore the cap to its closed position and store the product in a cool, dry, dark place away from direct sunlight, humidity, heat, children and pets. Keep it separate from other soft products so materials are not pressed together during storage.
The manufacturer says not to share this product. Replace it if the elastomer tears, cracks, becomes sticky, changes shape or develops an odor that cleaning does not remove; if the casing or cap breaks; or if the sleeve cannot be fully cleaned and dried. Do not modify, repair or heat the product.
Browse more strokers and masturbators, the TENGA collection, manual strokers or other male-focused products. Orders use discreet outer packaging; review the returns, refunds and hygiene policy before opening an intimate item.




