The KSI 300 Cigar Crystal Gel Humidifier will offer you a nice 70% humidity for a humidor with up to a 300 cigar capacity. Simply fill with distilled water per the directions to activate the crystals and it's ready to go in the humidor. Use it to keep your cigars and tobacco nice and fresh and to preserve the flavor. KSI is very well known for top quality products.
Dimensions 6.5 x 2.25 x 2 in.