The aptly named Kryptonite Series of climbing holds are guaranteed to sap the power from any Superman or Supergirl. These Kryptonite holds are formed from a radioactive crystal material producing different irregular geometric shapes offering many different ways to be held. Not your typical range of climbing holds, split into jugs, edges, pinches and slopers, these Kryptonite holds become different types depending on the angle and orientation they are used in, especially on surfaces ranging from slabs, to vertical and slightly overhanging. On steep ground, you will really have your superhero powers drained as they force you to pinch, or bear down on the sloping edges, with full power. This is a universal battle. Every hold uses a variety of angle to keep you guessing. They can be used in a variety of angles and rotations so that they force you to have to find the best way of using them. Once again the design of the Kryptonite holds stops you from grabbing the blob-like shape common in most climbing holds. PE (Polyester Resin) Each hold has a Stainless Steel Duel Fixing Insert that will not rust or corrode, unlike most other climbing holds. Made from Polyester Resin, this is the most durable, trusted and reliable material that has been used to produce climbing hols for decades. These holds are the UK industry standard for use in a busy commercial climbing gym. Conforms to European Standard EN 12572-3.