Product Infos Materials, Colors, Fixing FIBER GLASS This production method results in very light, flexible holds that are so strong that they are virtually unbreakable. Fibreglass is the ideal material for the production of large climbing holds. PU Polyuréthane is the resin most often used for making climbing holds in Europe. Mixed with sand (resin mortar), it is colored and catalyzed then poured into a mold. This method of production is the least expensive and the climbing experience on this material is very similar to the outdoor rock. It is sensitive to breakage and has no flexibility. SIZE 4 fluorescent colours Digital Climbing offers 4 fluorescent colours for its climbing holds: Orange fluo Yellow fluo Green fluo Pink fluo 9 standard colors Blue RAL 5015 Black RAL 9005 Green RAL 6018 Yellow RAL 1023 Orange RAL 2004 Purple RAL 4008 Grey RAL 7040 White RAL 9090 Red RAL 3000 D.D.S. Digital Double Screw Digital has also developed its fastening system, the D.D.S. (Digital Double Screw), which allows CHC or FHC screws to be fixed indifferently. Screw lengths are also a problem that Digital wanted to simplify. The series fixing is systematically provided with only one screw length, which makes it possible to assume that the size S or M sockets are fixed with 40 mm screws. The size L or XL screws are fixed with 50 mm screws. HOW TO BUY YOUR DIGITAL CLIMBINGS HOLDS SUPPLIER