Each set contains a random mix of various sizes of holds * Screw-On Footholds, Screw-On Handholds, Screw-On Rail, Screw-On Outside Corner, Screw-On Modulars, Micros, Modulars, Mini Jugs & Macro/Roof Jug * Makes the ideal starter set for a home wall * Includes all hardware and How to Build a Home Bouldering Wall booklet