thickened buckle schoolbag retaining ring plastic four-gear buckle hiking backpack adjustable buckle backpack backpack luggage buckle accessories

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red 2cm inner diameter orange 2cm inner diameter yellow 2cm inner diameter apple green 2cm inner diameter green 2cm inner diameter light blue 2cm inner diameter azure 2cm inner diameter sapphire blue 2cm inner diameter purple 2cm inner diameter pink 2cm inner diameter white 2cm inner diameter gray 2cm inner diameter black 2cm inner diameter rose red 2cm inner diameter light yellow 2cm inner diameter