All ProBlot Hybridization Systems are supplied with a starter kit containing ProBlot bottles and a pack of hybridization mesh. The bottles are constructed of heavy walled borosilicate glass with a flat bottom. The high temperature caps have a PTFE seal for leakproof performance. Bottles, caps and seals are resistant to all common hybridization reagents, including PEG. The 35mm diameter bottles are available in a variety of lengths and a convenient stand stores bottles upright when not in use.