Gorgeous open triangles, very enjoyable. These have a slightly curved bottom edge. These come in 12 different colors, & all colors are included in all packs. The missing color in the first picture is white, which can be seen in other pictures. Open Triangle Charms Plastic charms / Acrylic Charms Quantity 20 Measure about 25mm Tall, 18mm Wide, 5mm thick Hole Size about 2.5mm Mixed Color / Assorted Color / Multi-Color Smoke free studio. Monitor colors may vary. See all my jewelry making & beading supplies by visiting the main Smileyboy page. https://www.etsy.com/shop/smileyboy Please note the measurements given in the description & when applicable shown in the pictures in both metric & inches. This is the size of the product. I can not control your expectations of size, I can only control the size of what I send. If needed, check on a ruler to determine if this size will work for you. Please set your expectations appropriately when purchasing. If there are questions, please don’t hesitate to ask. I love to help make sure you will be happy with your purchase. Thank you for shopping SmileyBoy! 20 Triangle Charms Multi-Color Mixed Color Plastic Jewelry Making Beading Supplies Smileyboy Bubble Gum Charm