{"product_id":"rocketarium-18mm-aluminum-retainer-set","title":"Rocketarium 18mm Aluminum Retainer set","description":"\u003cp\u003eThese 18mm motor retainers work with standard BT-20 body tubes. Thicker paper tubes can be sanded to achieve a fit. Full set weight : 0.13oz\/3.7g. For use with all 18mm motors, including Estes\/Quest 18mm A-C motors, and Aerotech single use and RMS 18mm motors. No tools required to operate. Motors without thrust ring must be friction-fit.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eID: 18.95 mm\u003c\/li\u003e\n\u003cli\u003eMax OD of Retainer (Knurled section): 24.5 mm\u003c\/li\u003e\n\u003cli\u003eAssembled height:10.4 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Everdon Hobbies","offers":[{"title":"Default Title","offer_id":45962741743660,"sku":null,"price":13.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0557\/3174\/8908\/files\/rk91180ret_med.png?v=1786753864","url":"https:\/\/everdonhobbies.com\/products\/rocketarium-18mm-aluminum-retainer-set","provider":"Everdon Hobbies","version":"1.0","type":"link"}