【For NEEWER Square Flashes】 This adapter ring only fits NEEWER square head flashes, including Z880 Z760 NW760 NW620 NW600 NW700 NW-670 750II NW635II NW645II TT560. It can connect M12 CRM2 round flash accessories to square flashes for creative flash effects 【For Round Flash Accessories】 Suitable for round flash accessories, such as NEEWER CRM2 and GM-M1 magnetic round flash accessory kits with color gels, barn doors, honeycomb grids, diffusion panels, M12 dome diffuser, and more. Also compatible with Godox V860III TT685II square flash AK-R1 accessories kit 【Soft & Durable Silicone Build】 Made of nonslip silicone, the adapter ring can snugly fit on your square flash and protect it from scratches. It is also durable for outdoor photography under various circumstances 【Easy Storage & Transportation】 Only 63g in weight and 10.5x8.2x3.2cm in measurement, this adapter ring can slip into your camera bag, gadget case, and pocket for ease of storage and transportation 【Package Contents】 1 x Square Flash Head Adapter Ring for Round Head Flash Accessories