Rust Proof Anodized Aluminum Interior.Bevel Front Mirror - [within frame].Inside Mirrored Back.No Unsightly Hinges.Adjustable Glass Shelves.140° + Door Swing Opening.Recessed or Optional Surface Mount - w/Mirrored Side Kit (MSK-BSX).Solid Wood Frames - [4 Colors].Item Number Overall Dim. Rough Wall Opening # Shelves List Price SD-1622-R-BSXP 16" x 22" 14" x 18" 2 $279. Optional Mirrored Sides Kit #MSK-BSX-1622 $60. SD-1626-R-BSXP 16" x 26" 14" x 24" 3 $299. Optional Mirrored Sides Kit #MSK-BSX-1626 $70. SD-2026-R-BSXP 20" x 26" 18" x 24" 3 $379. Optional Mirrored Sides Kit #MSK-BSX-2026 $70. SD-2430-R-BSXP 24" x 30" 22" x 28" 3 $495. Optional Mirrored Sides Kit #MSK-BSX-2430 $80.