NO PINS, NO HOLES, NO ADHESIVE: Place the magnetic strip inside the garment and press the badge holder on from the front. Holds on blazers, shirts, blouses and polo shirts without piercing the fabric or leaving residue, and comes off just as quickly. 24 BADGES WITH BLANK INSERT CARDS: The pack contains 24 magnetic badge holders plus blank insert cards, ready to use with no extra accessories. Enough for an office team, hotel reception or event crew; order several packs for larger groups. 90 X 55 MM C-SLOT FOR QUICK CARD CHANGES: Horizontal 90 x 55 mm window in business card size. The C-shaped slot lets you swap cards in seconds, ideal for conferences and events where names change daily. The card sits firmly and does not slip out. CLEAR HARD PVC, WATERPROOF AND SHAPE-STABLE: The front is made of transparent rigid PVC that resists splashes, bending and tearing. Names stay easy to read across the room, and the holder keeps its flat shape when worn every day at work. OFFICES, NHS, HOTELS, SCHOOLS AND TRADE SHOWS: Suitable for offices, NHS waiting rooms, hospitals, hotels, schools, colleges, conferences, trade shows and retail. Safety note: not suitable for people with a pacemaker or other active metallic implants.