The flying disc is made of TPU material which consist LED light built in. Four-speed mode, through the switch to adjust long light, fast flash, slow flash, off. It is suitable for pets to play in the dark environment or at night, outdoor play. The waterproof design, cool and stylish, shining toy will be definitely popular with pets! This flying disc is recyclable for long time use. Powered by a battery and can be changed if it is power-off. It is an awesome toy to train your dogs outdoors.Colors:Clear.Size:5.11“.