Continue to use your beloved Aladdin lamp with this adapter - the solution for the discontinued Kone Kap Mantle. Use with the Aladdin Lox-On Mantle (#R150). Fits models 3-11. Approx. 3⁄4"H x 1-7⁄8"OD, 1-1⁄8"ID. Note: The Kone Kap Mantle is no longer being made. This adapter provides you a way to still use your lamp.