Music Nomad MN306 Premium Humidity Care System, Humitar & Humireader Long Lasting, Low Maintenance Re-usable Sponge Anti-Drip, No Mess Material Sponge Holds 10 times its weight in water. and Safely Releases Moisture Securely Hangs from Strings or Use Case Holster to Place in Case Patent Pending Innovative 3 in 1 Accurate Digital Hygrometer