VINTAGE UPRIGHT CLAM MEDIUM The Medium size, measuring 36cm wide x 24cm deep x 19cm high, can however sit conventionally flat, but also presents beautifully in the upright position. This clam can support lightweight items such as fruit, keys and trinkets - also looks stunning as a decor item on its own on a shelf, table or nook. This clam does have provisions on the rear flat back of the clam to be screwed into a wall. This clam does have provisions on the rear flat back of the clam to be screwed into a wall. Material: made from polyresin, cast from a genuine clam shell.