Scale Model Masterpieces (former Thomas A Yorke Ent.) Size: 3-3/4" tall by 2 15/16" wide On30/1:48 #SMM9130 This Timber Tunnel Portal is an original master creation by masterful modeler Scott Perry. All castings include detail wood grains (not too much) and NBW (nut, bolt & washer) castings molded in place. All you have to do is stain and install!. Really, you don't know a really easy and fast way to stain resin & LabStone castings? Just Ask Doctor Ben! The overall dimensions of this Tunnel Portal are 4.875" wide by 4.875" tall and 1/2" thick. The NMRA Standards opening is 3.75" tall by 2 15/16" wide. These Scale Model Masterpieces products are composed of UNFINISHED /UNASSEMBLED Natural Labstone casting parts-Assembly & Finish Required. Assembly using Doctor Ben's Hypo-Cement for tiny delicate parts as well as most plastic cements and painting may be completed by hand or an air brush. Want to know how to weather your finished model? Scroll down to find out how! The above image best describes this item assembled (required) & its design. Instructions to Weather this Product - Seriously, this is NOT rocket science-it’s just weathering! We applied two coats of Doctor Ben’s Instant Age Weathering Solution (#1152) diluted 50/50 with Isopropyl Alcohol (70%) allowing the IA to dry between coats & then applied diluted Doctor Ben’s Realistic Rust Weathering Solution (#1150) where metal rubs metal. | 