The Stofen Omni Bounce Diffuser is designed to be used with Canon Speedlight 420EX Flash.This on-flash light control is preferred by many as it help produce a diffused bare bulb effect for required shotsAn even coverage is offered throughout the frame when used with 15mm to 200mm 35mm format lensesApart from UNI and No Velcro, the Stofen Omni Bounce Diffuser offers an easy fit with the other flashesThis compact diffuser for non Speedlight 420EX Flash is easy-to-carry as it can fit into your gadget bag or pocket