The 5 minute modern glass sand timer w/ black & white mixed sand measures 4"H x 2"Dia. This innovative sand timer is made with a hand crafted glass globe and is truly stunning. It is filled with black & white mixed sand. The sand color may vary slightly. This is a very popular item for corporate events and parties. It makes an excellent gift for everyone from the graduate to the executive. Sand timers are aesthetically pleasing ornaments, rather than accurate timepieces. This sand timer is usually accurate to within 2 minutes.