USB Fast-Warm 2in1 XL Spliceable Telescopes DSLR Camera Dew Heater Dew Prevention Shield, Active Lens Warmer Strap Anti-Condensation Bands for Canon Nikon Sony Gskyer Celestron (Max Ø 6" /180mm) - fantaseal, X2103

• 【Spliceable & Fixed by velcro】: Double 330mm dew heater lens strips for easy splicing into longer strap, compatible with astronomical primary mirrors of OD below 180mm or camera lenses. The defogging belt is fixed by velcro which not only allows the defogging belt to fit your lens, but also allows you to quickly disassemble and adjust the length you need. 【Fast Heat Transfer & Good Insulation】Super fast and continuous warming with fast start up of 5 seconds to heat, Dew Heater Strip is specially designed for camera lenses and telescopes. It prevents condensation and Dehumidification by warming up the lens on a camera or telescope warming up 40-180 mm camera lens to prevent the lens from fogging. 【Universal lens warmer】: Lens Warmer prevents telescope camera lens from fogging dew by warming up the lens on a camera or telescope. It also warming up water bottle coffee cup and use as wrist knee strap. Based on the USB port design, it is very handy to use because you can connect it either to your power bank or any other power source with a USB port. [High Quality & USB port design]: Made of premium Material ,it helps prevent heat loss in the atmosphere, making heater power efficient, keep the lens dry and take the long exposing pics at cold night successfully. it is very handy to use because you can connect it either to your power bank or any other power source with a USB port. 【PERFECT AFTER-SALES SERVICE】: friendly after-sales service are provided. What we do will make life easier, better and more fun. We make sure our lens warmers are the absolute best on the market. If you don't like our products, we will send a replacement or a full refund. there is zero risk for you to try.