●Product specification - grip size: core size: 0.600 ", grip length: 10.60 ",weight: Undersize: 38±3g weight: standard: 48±3g, weight: medium: 57±3g, ●Rubber Material: Grip made by soft rubber material used to improve feel and comfort and providing precise ball feed-back. ●Responsive material- rubber has good resilience and good abrasion resistance, excellent anti-slip and shock absorption properties ●Surface Texture: Designed for softer feel , and strategically placed for high traction. while texture placement is ideal for maximum hand overage. ●【After-sales service】100% No-risk Money Back Offer. Any issue you met, please feel free to contact us