Our MagFlex self-adhesive magnetic dots are great for creating displays, for schoolwork projects, or for displaying greeting cards on your fridge, whiteboard, or noticeboard. Simply peel them off the backing sheet and using the self-adhesive on the non-magnetic face, stick them to the reverse of an item you want to stick to a metal surface. These MagFlex sheets utilise a firm acrylic pressure-sensitive adhesive that substantially increases in bond strength with natural aging. While the initial touch bond strength is enough to keep the grip secure, to ensure the adhesive can withstand the pull strength we recommend allowing between 24 to 32 hours for the adhesive to fully cure. Each dot is 20mm in diameter by 0.7mm thick and there are 88 per MagFlex sheet. These dots are non-toxic but could present a choking hazard for young children so always supervise children using these magnets.