One of the lightest loads moved by rail, wood chips require one of the biggest cars and they′re easy to add to HO operations with these WalthersMainline Greenville 7000-cubic Foot Wood Chip Hoppers! Back by popular demand, features of these models include: One time run of these road numbers, order now - limited quantity available! Prototypes in service from early 1970s to the present Designed especially for moving wood chips from sawmills to paper mills Prototypical interior bracing Authentic door latch details Detailed brake gear Heavy die-cast metal underframe 100-ton trucks with correct 36′ turned metal RP-25 wheels Proto MAX(TM) magnetic metal knuckle couplers