DeWALT heavy-duty tape holder features a slotted keel design. Made of durable ballistic poly material which provides strength and durability. Accepts most large-case measuring tapes. Slotted keel design allows for easy tape removal and "quick-measure" capability. Elastic loops hold pencils， markers and small bits. Securing strap with hook and loop backing helps keep strap out of the way when not in use. Attach to belts up to 2-3/4" wide