Product Description The Powerhouse Ultra-Safe Ball Plug Kit has been formulated to provide excellence in clarity! Now matching bowling ball colors is safer & easier by requiring less pigment! This kit even saves you money, materials and time so you can get back to having fun!Includes (1) Hardener 1/2 Gallon & (3) Resin 1/2 GallonsFor use with all coverstock materialsDesigned to resist impact, cracking & chipping3-to-1 Mixture cures in 6-8 hours when dispensed by calibrated pumpsBy mixing in accelerator additive ensures proper curing in various room temperaturesPremium adhesion to all coverstock & core materialsUltra-Safe formula eliminates allergic reactions from skin contactContains Non-toxic & Non-hazardous materialsEnvironmentally responsible – No OSHA or DOT restrictionsColor Kit Not Included