BENECREAT 24Sets Essential Oil Roller Inserts Kit, Stainless Steel Roller Balls and Black Bottle Cap for 5~15ml Essential Oils, Cosmetics Bottle, 9mm inner diameter

Specification: Material:stainless steel ball and plastic black cap Color: black cap, white bracket. Package Included: 24 Pcs stainless steel roller balls and 24 pcs black cap. Just take a roller, insert it into the neck of the bottle, push it flat into the bottle, and it's installed, perfect for 5-15ml essential oil bottles

• 【24 Sets】: One pack contains 24 sets of essential oil bottle top roller sets, including 24pcs stainless steel roller balls and 24 black matching caps.
• 【Size Reference】: Black plastic cover about 0.81 inch/20.5mm in diameter, 1.10 inch/28mm long, 0.67 inch/17mm inner diameter, bracket about 0.81 inch/20.5mm long, 0.53 inch 13.5mm in diameter, 0.35 inch/9mm inner diameter.
• 【Easy to use】: Just take a roller and insert it into your bottle neck and push it flat into the bottle, screw cap onto the bottle and tighten. The installation is complete.
• 【Suitable for Small Essential Oil Bottles】: The essential oil roller can be snapped into your essential oil bottle, which is convenient and leak-proof, and can be easily disassembled and reused as needed.
• 【Recycle and Reuse】: Our roller top insert instantly turns your spray oil bottle into a personal roller. Great for thicker oils, diluted or rolling oils.