Uxcell 2-Way RJ11 US Telephone Plug to RJ11 Socket Adapter and Splitter for Landline Telephone Casing of this US Telephone Adapter is made of durable plastic material Cable Length: ~12.7cm Dimension: ~5.2(L) x 1.9(W) x 2.4(H)cm Weight: 17g Package Included: 1 x 2 Way RJ11 Adapter