Top hat only. Crack repaired The Zildjian ZBT Plus 14” Rock Hi-hat Bottom is a high-quality bronze hi-hat developed by the renowned brand Zildjian. This unit, measuring 14 inches in diameter, is specifically designed for rock music and includes a hi-hat bottom for added versatility and control. The ZBDT Plus model is known for its brilliant sound and durable construction, making it a popular choice among drummers looking to enhance their playing experience.