Widely trusted for PSA, BGS, and other grading submissions, this format delivers the balance collectors expect - secure structure with controlled give. Each holder measures approximately 3-5/16 in. x 4-7/8 in. , providing enough room to insert and remove cards smoothly, without pressure on corners or surfaces. Crafted from clear semi-rigid PVC, they offer strong visibility and dependable protection. Pair them with Easy Glide soft sleeves for a clean, low-friction fit that keeps your cards protected from handling to submission. These semi-rigid holders are built for real-world movement. The added flex allows them to navigate the tight turns of USPS sorting equipment, making them well suited for eBay Standard Envelope shipping without compromising protection.