These are high quality Pegasus 23 centerline wheels. This set includes 4 complete wheels to use with a standard metal axle (usually found in AMT kits for example). The rims are well detailled and the chrome coating is very bright and resistant. Each wheel is mounted with a low profile rubber tire. Dimensions in mm (you'll bless me for this info :) ):

Rim diameter : 23 mm

Rim width : 12 mm

Wheel diameter (rim+tire) : 28 mm

Wheel width (rim+tire) : 12 mm

Except their size, these wheels are the same as CL's 19 chrome wheels with tires.