Specification Brand : turbo BulletPoint1 : A comfortable and properly fitted grip is essential to a good release BulletPoint2 : In addition to adding to your enjoyment of the game and preventing sport injury, a properly fit grip can add revolutions, create more ball speed and make the ball feel lighter BulletPoint3 : Adding finger and/or thumb inserts to your equipment will also give you consistent feel when using a variety of different bowling balls Color : White ItemName : Turbo Quad Power SB Finger Grip (39/64, Yellow) ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 1 ItemTypeKeyword : bowling-protective-gear Manufacturer : Turbo PartNumber : LYSB00LKRSCK2-SPRTSEQIP Pattern : Solid ProductDescription : Patented features like the glue channel on the outside surface of each insert aids in cleaner installation and preventing glue from seeping to the surface of the bowling ball. Helpful size indicators can be found on the outside and inside of each insert. Side 1: Power Lift 1/4” – helps increase loft and length of release to the target. The finger pad has a flat edge and smooth surface for a sharp, clean feel. Side 2: Semi-Super Bump or Relaxed Finger Tip – has a smooth, rounded bump close to the front edge. When properly fit, the bump rests under the first knuckle of the finger. It is designed for a more relaxed grip and ideal for bowlers who suffer from arthritis or have weak grip pressure. 31/32" Standard diameter for grip sizes 39/64" (#1.5). 40 Shore A durometer hardness. ProductSiteLaunchDate : 2016-01-30T16:40:46.631Z Size : 5/8 UnspscCode : 49221500