DESCRIPTION 1.Compatible with Worker Mod 19mm diameter tube.We recommend the length of tube more than 10cm. (tube need purchase separately) 2.Function: Decoration,This product is only for decoration,no deadening effect. 3.Upgraded LED light weight quartz lens provides brighter glow for your shots,The effect of flame depends on the darts throughing the tube. Glow in the dark darts makes better effect. 4.This Tube barrel with rechargeable battery and micro USB charging port. 5.Blaster not included!SPECIFICATIONS Model: Tube Flash Color: Black transparent Material: Plastic Package Weight: 30g Package Size:160×50×50mmPACKAGE INCLUDED 1x Tube Flash 1x USB charging cable