UNIVERSAL FIT - These Nordic walking poles rubber tips are designed for active fitness enthusiasts outdoors and indoors use and compatible with all brands models of poles available in the market TOUGH GRIPPY Made from engineered abrasion resistant TPR polymers, tire tread sole and internal metal washer seats to prevent punctures these are ideal fitness walking poles tips for power walkers GO ANYWHERE This rubber fitness walking tip will work on pavement, back country trails, beach, indoors and the rate of wear and tear on sole will be dependent on the terrain surface characteristics BUNDLE SAVINGS Convenient 4 Pack allows for keeping pair spare on the shelf or for friend or family who also shares and enjoys the sport with you and needs pair of Mons Peak IX Nordic poles rubber tips SPECIFICATIONS Taper hole 10-10. 9 mm / 0. 39 - 0. 43 in for snug fit to Nordic poles tips / Weight: 1. 1 oz / 33 gm