`- Designed with input from none other than Tinker Juarez\n- Produced from an exclusive A.I.R.E. compound which infuses air into the grip, reducing weight and providing a slower rebound for improved comfort \n- Contoured surface for all day comfort\n- Ergonomic finger cutouts for better surface grip\n- Reinforced inner layer increases durability \n- Medium diameter at 35mm\n- Made in the USA