DIGITAL DOWNLOAD 4x4 Car Coaster Set Off With Their Threads 4x4 Coaster EnduroCo Offroad Eco Friendly Coaster Boxes Wholesale 100% Free Shipping 4imprint.ca: 4 Coaster Set C147458 Custom Coaster Set of 4 With Holder (option 3) Etsy. Magnetic acrylic coaster set of 4 and holding case for your needlepoint. Both the circle and square have 4. 25" inside dimensions (made to accommodate finishing + cording of your standard 4" circle or 4" square needlepoint canvas). The coasters have a small lip on the top to keep your drink from sliding off. Your needlepoint is fully protected and interchangeable with our magnetic closure from the top of the coaster to the base. Each set comes with four coaster acrylic pieces and an open storage box to keep them in. We recommend sending one piece of the acrylic set off to your finisher to ensure the perfect fit for your piece.