A set of two 80x10mm red Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1431

This RC switch converts hobby radio control pulses to digital on/off signals for use in RC switch and simple RC adapter applications. One output indicates the presence of a valid RC signal, and the other indicates whether the switch is active. The activation threshold and direction are configurable, and a safe-start feature reduces the likelihood of unexpected activation. Pololu 2801

Pololu - 2511

A set of two Polol wheels with a dimension of 80x10mm in black with interchangeable sleeves for 3mm and 4mm shafts. Polol 3690

A set of two Polol wheels with a dimension of 80x10mm in white color with interchangeable sleeves for 3mm and 4mm shafts. Polol 3691

A pair of 32x7mm silicone tires compatible with Pololu 32x7mm wheels. Pololu 3407

A pair of 32.5 x 6.6mm silicone tires compatible with Pololu 40x7mm wheels. Pololu 3408

A pair of 66x10mm silicone tires compatible with Pololu 80×10mm/90×10mm wheels. Pololu 3410

A pair of 50x8mm silicone tires compatible with Pololu 60×8mm/70×8mm wheels. Pololu 3409

A set of two 80x10mm yellow Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1432

A set of two 90x10mm yellow Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1437

A set of two 90x10mm blue Pololu wheels. Fits D-shaped shaft with a diameter of 3mm. Pololu 1438