Item number: EXT-18BK-XX Piece of mesh band extension link, easy to extend the length of band (20mm long per piece) Material: Stainless Steel Spring Bar: SSB-200S+0.6x1.2 (a pair included) Color and Finish: PVD Black
18mm version: EXT-18BK Overall size: 20mm x 20mm x 7mm Solid link size: 7mm x 20mm x 7mm Mesh link size: 14mm x 18mm x 4mm New Weight: 8g
20mm version: EXT-20BK Overall size: 20mm x 22mm x 7mm Solid link size: 7mm x 22mm x 7mm Mesh link size: 14mm x 20mm x 4mm New Weight: 9g
22mm version: EXT-22BK Overall size: 20mm x 24mm x 7mm Solid link size: 7mm x 24mm x 7mm Mesh link size: 14mm x 22mm x 4mm New Weight: 10g
24mm version: EXT-24BK Overall size: 20mm x 26mm x 7mm Solid link size: 7mm x 26mm x 7mm Mesh link size: 14mm x 24mm x 4mm New Weight: 11g