Set of 44 made of high-quality needle felt: 20 pieces with a diameter of 20 mm, 12 pieces with a diameter of 38 mm, and 12 pieces measuring 25 x 25 mm. These self-adhesive felt gliders for furniture and objects allow for floor-protecting movement on all hard, smooth surfaces. They are also suitable for objects such as speaker boxes, lamps, or decorative items. The self-adhesive gliders are ideally designed to protect sensitive surfaces. The attachment is quick and easy; simply peel off the felt gliders from the carrier film, stick them on, and you're done.