Symington-Wayne XL-70 70 ton truck, with roller bearings.  HO scale.

These trucks with roller bearings were used on C&O PS RBLs 23000-23164 (not all cars in series), CB&Q 96015-96019 and MFVX 6865-6899 Flexi-Van cars, CN 635285-635464 container cars, and SP 89′ flatcar 900423 (more?).  There were certainly others; if you know of any, please share!

Package contents: (1) pair of ready-to-run trucks with semi-scale (code 88) nickel silver wheelsets and brake detail.