Come and Check Our Promo Solutions.This lighted jacquard knitted beanie is made of 95% acrylic and 5% spandex, each hat contains with 6 LED lights which powered by 1 CR2032 button battery. The LED has 3 different lighting patterns, including solid, twinkling and alternating. This knit cap can help brighten your festival and catch people's sight, bringing you a warm and comfortable wearing experience. Size is about 8 1/4" W x 9" H, one size fits most adult, we may provide children size as well, please feel free to contact with us. The jacquard pattern can be customized. Pls check inventory and detailed info with us before placing your orders.