[RUBBER WRENCH SIZE & MATERIAL: ]The belt is made of quality reinforced rubber it can protect surfaces from and scrapes, strong and to use. Large wrench size for diameter 38mm -150mm /1.5 inch -5.9 inch. Small wrench size for diameter 10mm -100mm /0.39 inch -3.9 inch. [EASY TO USE:] Ergonomic design provides comfort and control,comfortable to hold and easy to operate.Simply wrap the belt to the cap, tighten the belt and rotate it, you can quickly open or close the cap. [SUITABLE FOR ALL SIZES:] Strap wench plumbing can be tightened or loosened to any length. The rubber wrench can be used on caps from the size of 2/8inch to 5-9/10inch (10-150mm) which includes most sizes of caps for home use. [CONVENIENCE:] You can easily bring rubber wrenches to anywhere you want to go. When you camping or picnic, you never meet the opening of the bottle.Perfect for Arthritic Hands, Weak Wrists, Plumbers, Mechanics, and More. Material:Plastic + Rubber colour:Yellow Package Contents: 2 x adjustable wrench Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.