The Hexagraine seed cellar is designed to preserve seeds for a long period of time with the least possible impact on the environment. The unreconstituted cork cork maintains perfect watertightness and maintains its elasticity at negative temperatures up to -80°C and positive temperatures up to +140°C. The shockproof glass tube body is also resistant to extreme temperatures. A solution to protect your seeds in all circumstances. - Cap made by a company labelled a living heritage company. 100% natural ADVANTAGES AND SPECIFICITIES: Long shelf life and rot-proof Resists from, -80 to +140°C Made in France TECHNICAL DATA Weight: 5 g Materials: cork cork, soda-lime glass body Dimensions cellar + cap: 12.25 x 100 mm Cellar inner diameter: 10.8 mm thickness of the cellar glass: 0.5 mm Cellar capacity: 10 ml Stopper dimensions: Height 25 mm Diameters 14/11