Light Up Dog Safety Collar with Leash Training Infographic. Visibility and Adjustable Leash and Tag Attachment. Lighted Flash Flashing with Battery LED light glows and flashes in darkness Bright color matching LED lights can be seen from far away Adjustable length, easy and comfortable to wear and remove Made of sturdy and durable Nylon material, and steel ring for leash attachment Easy to use: Simply pushing the control button makes the light ON/FLASH/OFF