Printin3D Bamboo Nesting Tubes for Wild Bees, 7 12 mm Diameter, 150 Length, Pack of 300 Sleeves Insect Hotel, Mason Bees and Solitaire

Versatile set: contains 300 bamboo nesting tubes in 4 different sizes (7 mm, 8 mm, 9 mm, 12 mm outer diameter) with corresponding inner diameters (4 mm, 5 mm, 6 mm, 9 mm) for different wild bee species Optimal dimensions: each tube is 150 mm long and with diameters of 7-12 mm offers ideal nesting possibilities for masonry and solitary bees for species-appropriate breeding Natural material: made from robust bamboo, the nesting sleeves offer a natural and durable housing for various wild bee species in your insect hotel Easy to use: the tubes require a fixed back panel and should be placed in a sunny, wind-protected location with a southern orientation for optimal settlement Year-round use: the nesting tubes stay in place over the winter, so that the bee brood can hatch in spring at warmer temperatures - ideal for sustainable bee protection