... dog neck control ring ,it can shine at night. Length 1.5m.Diameter 5mm.Pull 50KG(for Special requirement can meet 120Kg ... without danger. PullDia / Length shine color W5050kg5mm / 1.5mYellow green,blue greenW120120kg5mm / 1.5mblue greenW55kg5mm / 1.5mRed,Blue,Green,Yellow etc ,13 kinds ... colorW88kg8mm / 1.5mRed,Blue,Green,Yellow, etc 5 color Wmake for orderAny ...