The interphone fastener is designed to be used with chest strap, making it a versatile and practical accessory for anyone who needs to carry a interphone or other device while engaging in games or other team activities. It is easy to attach and remove, making it a convenient and practical choice for anyone who needs to stay connecting while moving. Features -Color:Black -Material:Nylon -Size:7.00X2.80X0.50cm/2.75X1.10X0.20in -The fixed buckle is easy to operate, making it a convenient and practical choice for anyone who needs to stay connecting. -The fixed buckle is designed to be made of nylon material, can be used for a long time. -The fixed buckle is perfect for use during games, team activities, and it is sure to become an essential part of your eqquipment. -The fixed buckle is designed to be simple, making it a stylish and fashionable accessory that won't detract from your overall look. -The fixed buckle is easy to attach and remove, making it a convenient and practical choice for anyone who needs to connect while moving. Package list: 20 x interphone fasteners