Lipstick DIY is very useful; make their own lipstick; inner hole 12.1mm; super soft super good mold release; use baby pacifier the same food grade silicone mold; this mold is suitable for all lipstick 12.1mm in diameter; silicone sleeve must match with aluminum round Rings can be used to make lipstick; an aluminum ring can be used with any silicone sleeve. Explanation: Product Name: lipstick mold Material: aluminum alloy; plastic; silicone Color: Silver Internal diameter: 12.1mm Bracket style: single hole Silicone Mould Style: Birdmouth Efficacy: Make lipstick Package Contents: 4x aluminum ring 4x silicone mold 4x single hole bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.