The magnetic storage board, which effortlessly attaches to the back of your phone via magnetic adsorption. Pair it with the silicone binding strap, and you've got a secure way to bundle items: strap can firmly hold items in place, with buckles that lets you adjust tightness for a perfect fit. Its surface is attached a cushioning silicone sticker, adding a protective layer for your items. With dimensions of 93×63×5mm, it's compact enough to fit most phone models. Whether it's a portable DAC/Amp, power bank, portable hard drive, your items stay locked to the magnetic board, right where you need them.