Check the listing for details. 4pcs Aluminium Cooling Heatsink Holder / Mount for 12mm Laser Diode Module. Condition: New. Listed at 12.21 USD. 4pcs Aluminium Cooling Heatsink Holder / Mount for 12mm Laser Diode Module Features Material and Color aluminum Dimensions 35cm L X 30cm W X 18mm H Details This is a high quality aluminum heatsink/heat sink holder for 12mm laser modules like 12mm red, green and IR laser modules. The heatsink holder can help to cool the laser to prolong the working time of laser mdoules. It is a laser module holder and mount to fix the module. The Inner diameter of this one is 12.35mm, it has two bolts on the top to fix the laser. Package 4 sets of heat sink ( with screws) Payment Details We only accept Paypal Psyment. We will send the item to you as soon as you won and paid. Delivery Details We provide standard shipping to international via China Post airmail or Hongkong Post airmail with tracking number.Email us if not receive items. We only ship to the approved address given in Paypal Payment.Please make sure payment address in Paypal is correct.Any non-received items caused by invalid address registered on Paypal are not in our full refund or replacement policy. Returns and Replacements We accept returns and replacements within 30 days from the day the cutomer receive the products.Please make first contact within 30 days from receiving the order.Products should be returned in original condition. About Feedback We will try our best to solve any dispute and satisfy our customers. Please contact us firstly if you have any problems.As you know,a negative feedback can deal nothing and the positive feedback is very important for us.So we hope to your understanding.And we will appreciate if you would like to contact us for solving your problems.Thanks!