Elevate Your Prank Game with Glitter Trap Envelopes! Looking for a hilarious way to elevate your card-giving experience? Our Glitter Trap Envelopes are designed to unleash a wave of glittery surprise upon opening, making your card not just a message, but an unforgettable experience! Double the Fun, Double the Surprise These envelopes are the perfect companion for our Joker Greeting Cards. Double prank your friends and loved ones with non-stop music from the card, followed by a glitter explosion from the envelope. Or use them with any card to add a little extra sparkle to someone's day. As Easy As 1-2-3 Lift the flap and insert an Endless Joker Card (or any card you'd like to send with a sprinkle of mischief). Remove the white adhesive cover on the lip. Fold the envelope flap over, and voila! You're ready to send out the ultimate glittery prank! Our envelopes measure 5x7 inches, providing a snug yet flexible fit for most cards.