Side mattress retainer

No. 1 side mattress stop for bed bases with wooden frame
Use: one pair on each side of the bed base, stops and limits the mattress from sliding sideways on wooden bed bases
Compatibility: wooden bed bases with slats 38 mm wide (not suitable for Minerva, Plutone, Urano, Mercurio and Nettuno)
Assembly: simple and intuitive, no screws or nuts required