The Ursa Sticky Circles are 24mm in diameter, see-through and very low profile at just 0.4mm Stickies. The tape is certified hypoallergenic so it can be used directly on skin. You can also use it on fabrics as it leaves no residue and peels off without tearing. Each Ursa Sticky Circle has been pre-cut and has a small peel-off tab for easy & fast use. They are compatible with a variety of Lavalier Microphone Mounts including RM11s, DPA Concealers and can also be used with Ursa MiniMounts. One Pack contains 90 pre-cut 24mm diameter Sticky Circles.