Approx. dimensions: sea life pieces are 3 - 4 inches in diameter, and when in the kelp next, 4 - 7 inches. Shown you see a sea star, sea snail, scallop shell, conch shell. If you purchase, your "nest" may be different than shown. I will make additional nests are needed due to sales. These clear glass sea things are shown in the rough seaweed nests for textural interest. They make nice gifts for anyone, but especially for one confined to home--bringing a bit of nature inside! Note: I can make these in other colors.