The price is for a Single Winder Rig Insert for your Nytro seat box cassette / mag tray. Keep your rigs tidy and secure with these sturdy and hardwearing Winder insert Rig Trays. 130mm Winder Tray – This tray will hold 15 Rig Winders with a maxWidth of 18.5mm and aLength of 130mm.
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