Hign-concerned Chemical: None Package: Yes Compatible Model: V860II AD200PROII TT685 TT600 Series Flash Compatible : Name: Universal Compatibility: The For S-R2 adapter is designed to fit a wide range of flashes including the For AD200 Pro, AD200Pro II, and AD200, as well as the V860III, V850II, TT685II, TT600, TT520II, TT520III. It also supports major camera flash like , , and , making it a versatile tool for photographers to achieve professional lighting effects. Enhanced Protection and Durability: Equipped with a grid rubber mat and ventilation holes, the For S-R2 not only ensures a secure grip on your flash units but also protects their surfaces from scratches and wear. Portable and Convenient: Weighing just 0.2 lbs and measuring 4.17 x 3.66 inches, the S-R2 adapter is both and compact. Adjustable Fit for Flash Sizes: The adapter features an adjustable knob that allows it to accommodate square head flashes with thicknesses ranging from 1.67 inches to 2.15 inches. This adjustability ensures a snug fit for a variety of flash models, enhancing the adapter's utility and flexibility in different environments. Color: Black Material: Metal Package Contents: Round Head Accessories Adapter x1 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.