These Heart Pendants are made from resin, alcohol inks, uv resin and pigment powders Colors used are blue, pink, purple, cherry red and yellow. They are approximately 2x2 inches and weigh about 1 ounce each Great gift for Mom and Grandma If 24 inch chain is too long I can make what ever length you need ( Send request via email ) Clean Heart with just water and soap, harsh detergents will ruin the shine. Please contact me with any questions, I will be happy to reply. Thank for shopping my small business. Please take a look at all my other makes.