2 PCS AG30 Bicycle MTB Bike Lock-on Comfort Sponge Handlebar Hand-Stitched Grips 1. Material: High quality sponge + 6061 aluminum alloy 2. Suitable for folding bike mountain bike bmx bikes electric vehicles 3. Ergonomic grip shape, comfort grip feeling, this anti-slip design mountain bike grips would relieve your fatigue and hands pain for long distance cycling! 4.130mm length with the bike grips handlebar fits for bicycles handlebar tube outer diameter approximately 22mm (0.86 inch) 5. High quality sponge makes you feel very comfortable,it does not stimulate the skin. 6. Pliable sponge which also helps absorb just about all road shock and vibration. 7. Ergonomic design Widening the bike grips bearing surface,fit in your hand perfectly and support the whole palm and the thumb, effectively reduce the pressure and fatigue from long-riding. 8. The mountain bike grips handlebar with a groove design to provide you with a good grip and the best touch feeling. 9. The lock on grips have four metal rings in total, high strength 3D aluminum alloy strengthening locking ring turning, two for each grip, used to tighten the grips on to the poles of the bike.