GripLoc Products LLC has developed and manufactured the first patented Urethane Interchangeable Thumb Assembly for the bowling industry. GripLoc requires no hardware for installation nor any tools for changing the thumb insert. GripLoc's unique features give bowlers the needed control when it counts most.
Improve Your Game With GripLoc
GripLoc's unique features offer the bowler a set of removable grips that the bowler slides in, pushes down, turns and LOCKS into place within the outer sleeve. As the bowler's thumb swells and/or shrinks, a larger and/or smaller grip size can be installed by removing the old grip and inserting a new grip within seconds.
The GripLoc insert will allow changing of grips between games or even between frames, improving the fit of the ball to the hand. As a result, the bowler's score will improve, ensuring a proper fit at all times.
The outer sleeve is made of a material that is strong, but can be trimmed if necessary after being installed. The inner sleeve is urethane, 75 durometer hardness and is superior to the current solid urethane slugs being sold by several distributors in today's market.
Contact A Pro Shop Today And Get Better Control Of Your Bowling Ball With GripLoc Interchangeable Thumbs.
Located in the suburbs of Michigan, GripLoc Products LLC was formed in 2002 after a year-long testing period of the quick-change interchangeable thumb insert developed by Todd Graskewicz (Inventor) and the assistance of a major bowling company. The Inventor’s focus was to come up with a product that would help people who share the common problem of the hand swelling or shrinking due to unrelated issues (weather, weight gain/loss, etc). A proper sized bowling ball, especially the thumb hole, will give you the consistent release required to roll those high games.
GripLoc Products was first showcased to a domestic and international audience at the 2003 Bowling Expo in Las Vegas. GripLoc demonstrated how easily the outer sleeve can be installed into a ball, as well how the inner sleeve can be quickly changed to another size within seconds. The response to GripLoc’s product was overwhelming! GripLoc continues to showcase worldwide at various bowling tournaments, industry shows, and private demonstrations.
With GripLoc’s product success in Las Vegas, GripLoc’s product provided the bowling industry the first patented urethane interchangeable thumb inserts that required NO hardware for installation, nor any type of tools for changing the insert, making it quick and easy for the pro shops as well as the consumer.
GripLoc's unique features offer the bowler a set of removable thumb inserts that the bowler slides in, pushes down, turns and LOCKS into place within the outer sleeve. As the bowler’s thumb swells and/or shrinks, a larger and/or smaller insert size can be installed by removing the old insert and inserting a new insert within seconds.
GripLoc's standard or oval inner sleeve will allow changing of grips between games or even between frames, improving the fit of the ball to the hand. As a result, the bowler’s score will improve, ensuring a proper fit at all times.
The outer sleeve is made of a material that is strong, but can be trimmed if necessary after being installed. The inner sleeve is urethane, 75 durometer hardness and is a unique mixture to the current solid urethane slugs being sold by distributors in today’s market.
Pro Shops: contact us for a free trial sample of GripLoc Products Interchangeable Thumb Insert or if you need any assistance, please feel free to contact us with any questions you might have.
Small Interchangeable Thumb Kit
Outer Sleeves: Standard Size and Large Size
The Standard Outer Sleeves (OS 200) has a 1-3/8" O.D. and is 2-7/16" lg.
The Larger Outer Sleeves (OS 300) has a 1-1/2" O.D. and is also 2-7/16" lg.
This Large Inner Sleeve can be drilled out to 1-1/8 thumb hole.
Both Outer Sleeves come in black and are made from a durable Nylon material.
Standard Inner Sleeves
Standard Pre-Molded Inner Inserts are 1-1/4" in Dia. x 2-7/16 lg. The size range is from 3/4" to 1-1/32" by 1/64th of an Inch. We also have solids you can drill out!
Large Inner Sleeves
Large Inner Inserts are 1-3/8" O.D. x 2-7/16 lg. They can be drilled to 1-1/8" I.D. Standard colors are Black, White, Fl. Yellow and Fl. Orange
Oval Inner Sleeves
Oval Inner Inserts
Email us and we will send you an Order form that has both Std. Inner Sleeve and Oval Sizes listed to best fit your size.