Model Number: GD-J16 Series 30m/50m Brand Name: GDLON Key Specifications/Special Features: 1.GDLON double coated fiberglass guarantees lifetime use2.Tough tapes won't break even when vehicles drive over them3.More durable than steel, more functional than cloth tape4.Heavry duty case construction with impact resistant ABS case or frame5.Zip line-3:1 gear ratio for faster rewinding. Order codem/ftmm Packing GD-J3016 30m/100ft 15mm 12pcs/carton GD-J5016 50m/165ft 15mm 12pcs/carton