Roberts Smoothedge Smoothedge Concrete 1220mm Brown SKU: 189482 MODEL: 21-243 Error. try again later You've successfully joined the club $ 2 .88 each Available on orders $50 to $1500.More info × Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants For installing carpet on concrete and substrates. Hardened high carbon nails pre started to save time. Features and benefits Hardened high carbon nails. Nails prestarted to save time.