Renthal BMX grips are available in four advanced synthetic rubber compounds to give you the optimum combination of strength, tackiness and shock absorption to suit every riding condition and individual style. The dual stage pattern has been chosen to offer maximum grip performance while still retaining rider feel.Ultra Tacky compound:Renthal's unique and exclusive Ultra Tacky compound constantly produces and renews a sticky surface coating. The resulting adhesive grip surface massively increases control and reduces fatigue. If the grip loses its stickiness, simply wash with clean water and allow the grips to air dry to re-activate. The sticky surface remains active in wet or dry conditions and works equally well with or without gloves. The Ultra Tacky compound gives ultimate control in all conditions.Kevlar compound:Renthal has developed a special reinforced grip made with increased wear resistance. The grip has all the properties you would expect from a Renthal grip but with the life extending properties of KEVLARï brand resin. The base material contains millions of randomly aligned KEVLAR brand resin particles. As the grip is used more particles are exposed, so the number of particles at the grip surface increases. The result is revolutionary with the softest material we have ever produced which lasts three times longer than our current soft material.