Cobra Nylon Hollow Wall Anchor For Plasterboard 10 Pack 4mm White SKU: 161293 MODEL: 37106 Error. try again later You've successfully joined the club $ 11 .29 pack of 10 Mitre 10 Variants 10 Pack of nylon hollow wall anchors which holds up to 28kg in 13mm plasterboard. Features and benefits No pre drilling required. Quick and easy to install. Made in America.