57mm (2.25") x 20mm Super Lite Treaded EVA Wheels for 4mm Axle (2 Pack) from Du-Bro - 225SL
These are far and away the lightest wheels Du-Bro has ever produced!  These Super Lite wheel series have a closed cell treaded foam wheel with nylon hub.  Perfect for electric park flyers or lightweight gas model aircraft.
Features:
\nBlack impact absorbing foam construction pre-mounted
Gray plastic eight spoke rims
Seven rib tread design
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Includes:
\nTwo Wheels