New Busch Model Railway Scenery BUSCH 6469 25 ASSORTED FIR TREES Tree size range from 40mm to 90mm in height These tree do not have roots. If your landscape is made of soft material these trees should push in easily. If your landscape is hard, you will need to drill a small hole for the trees to push into. Although this pack is branded as TT gauge it would also be perfectly suited for OO Gauge. Same day dispatch on orders before 1pm Monday to Friday. Weekend orders will be shipped Monday.