The 504-ESJ vertical clear vinyl badge holders are flexible S-Series proximity card holders made with anti-print transfer material, preventing your ID cards from sticking or transferring print, even in extreme temperatures. Each holder features a lock-in slot that passes through the front and back, securing the ID in place when the badge strap is inserted. Designed for credit card-size inserts up to 2.50" x 3.75", these top-loading holders are sold in packs of 100, providing a durable and secure solution for displaying ID badges.