So you want to be prepared for rock climbing? Practi Bolts are climibng hanger replicas used to easily practice climbing anchors anywhere. They use a combination of high strength magnets an a sticky backing to hold firmly in place and resist sliding. With Practi Bolts, youll be able to recreate any scenario from the mountain. Perfect practice helps climbers to be READY for the cliff and climb with confidence. Practi Bolts are also great for teaching the skills to beginners. Use them on a whiteboard in a classroom or at the crag.