Top-loading design: no more worries about card drops. While vinyl badge holders can tear at the seams and side-loading models are indeed a bit more robust, rigid polycarbonate top-loading badge holders are the safest option. Sturdy attachment for lanyard or strap: the polycarbonate slot on the back is perfectly compatible with vinyl attachments but offers superior durability compared to similar products when used with lanyards featuring metal swivel clips. Optimal protection: no more fear of damaging your card. Slim and stylish, this badge holder is ideal for office access cards, smart cards (PIV/CAC/TWIC), and all standard CR80/30 format cards (driver's license/bank card size); note: not suitable for thicker cards (e.g., HID ProxCard II "clamshell" cards). Transparent protection: made from slightly frosted clear plastic, it protects your card while diffusing light to avoid annoying glare on ID photos. Compatible with any type of lanyard or reel (not included): this ultra-durable badge holder pairs perfectly with your existing reels or lanyards.