HIFISTAY's V4 spikes are fundamentally different from your traditional steel spikes, especially those supplied with your speakers. There are 4 different variations of spikes available from HIFISTAY, starting with the simplest design, the Flip Spike, their height-adjustable Lutz Spike, the dual-motion swing Double Axel spike and all the way up to their flagship triple-motion swing, the Triple Axel spike. All of the spikes are made from duralumin and stainless steel, with a ceramic ball bearing as the contact point. The recommended load bearing per spike is 40kg for Flip & Lutz, 70kg for Double Axel and 120kg for Triple Axel.