This is a "Customized Made" laser lens mounting kit. It supports lens of diameter from 18mm to 20mm. It is made of aluminum. Note the surface looks a little rough but it's normal as it's a customized made and no polish or coating has been applied.

Lens support: Reflection/Reflex 18~20mm
Materials: Aluminum

Note: It comes in as a kit but easy to assembly. No lens included, just the mounting kit.

This item is sold brand new with 30 days warranty. The buyer will not hold the seller or eBay responsible for the appropriate or inappropriate use of this device either by the user or a third party. Once purchased, it is the sole responsibility of the purchaser to assume any and all liability from the use of this device.

-Buyer must response within 5 days after auction ended or the item will be re-listed.
-Buyer responsible for all shipping cost if return for exchange or refund
-Insurance is optional but highly recommended
-We accept returned merchandise with a 10% restocking fee. Merchandise much be well packed and no sign of physical damage or abused.