{"product_id":"wind-catcher-cfsr44251-carbon-fiber-sq-round-tube-4x4x2-5mm-x-1000mm","title":"Wind Catcher CFSR44251 Carbon Fiber Square Outer Round Inner Tube 4x4x2.5mm x 1000mm","description":"\u003cp\u003eThe \u003cstrong\u003eWind Catcher CFSR44251 Carbon Fiber Square Outer Round Inner Tube 4x4x2.5mm x 1000mm\u003c\/strong\u003e is a pultruded carbon fiber tube featuring a square 4mm x 4mm outer profile with a 2.5mm round inner bore. This hybrid geometry enables flat-surface bonding and clean mounting while retaining a round inner channel for rod, pin, or wire clearance — a versatile structural element for advanced RC aircraft, drone, and robotics builds.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePultruded carbon fiber with square outer and round inner profile\u003c\/li\u003e\n\u003cli\u003e4mm x 4mm square OD x 2.5mm round ID x 1000mm length\u003c\/li\u003e\n\u003cli\u003eFlat outer faces for easy bonding and mounting\u003c\/li\u003e\n\u003cli\u003eRound inner bore for rod, pin, or wire clearance\u003c\/li\u003e\n\u003cli\u003eExceptional strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eEasily cut and shaped with standard hobby tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRC aircraft structural members requiring flat bonding surfaces\u003c\/li\u003e\n\u003cli\u003eDrone frame arms and precision structural elements\u003c\/li\u003e\n\u003cli\u003eRobotics linkage housings and guide channels\u003c\/li\u003e\n\u003cli\u003eCustom RC builds requiring hybrid square\/round profiles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCFSR44251\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarbon Fiber Square Outer Round Inner Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOuter Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4mm x 4mm square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInner Bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5mm round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000mm (1 meter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePultruded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~0.7 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Wind Catcher","offers":[{"title":"Default Title","offer_id":45536062308663,"sku":"CFSR44251","price":5.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/2349\/files\/s-l1600_b6c37f62-77b0-48fd-bc91-f13f67271493.jpg?v=1690235450","url":"https:\/\/superstitionhobbies.com\/products\/wind-catcher-cfsr44251-carbon-fiber-sq-round-tube-4x4x2-5mm-x-1000mm","provider":"Superstition Hobbies","version":"1.0","type":"link"}