Use stopper to adjust the length as neck-strap for fitting your needs
Item #:D228001
Product:Plastic Pull Reesl with Stopper
Plastic pull reel with retractable strap as neck-strap
Material:Plastic + PVC strap
Size: 33/24mm DIA
Item Descriptions:Old ID#: RKR-345
Plastic badge reels and stopper at back side with size 33/24mm DIA and 45cm thin lanyard, with PVC Strap at the end.
HS Code:8308100000
Packing:1000 pcs in a carton of 39(W) * 22.5(H) * 45(D) cm with gross weight of 12 kgs