Perfectly circular 19mm orbit for aeration and mixing. Digital speed control up to 300 rpm. The Orbi-Shaker JR. is a space-saving shaker, complete with a 9.5" x 8" non slip, rubber coated platform that is ideal for tissue culture flasks, petri dishes and staining trays. Additional platforms are also available for the Orbi-Shaker JR, including the convenient MAGic Clamp™ platform (patent pending) for use with Erlenmeyer flasks and test tube racks. The unique, magnetic attachment method is the easiest way to instantly change between flask clamps of different sizes. Technical Data: Speed range 50 to 300 rpm, Speed increment: 10 rpm, Orbit: 19mm (3/4"), Maximum capacity: 4 x 1L or 4 kg, Standard platform dimensions: 9.5" x 8"/24cm x 20cm, Dimensions (WxDxH): 11" x 10.7" x 5"/28cm x 27cm x 13cm, Operating Temperature: 4 to 650°C Braintree避难所小屋II 一个舒适，安静的地方休息，或爬上去探索。切碎的材料（只是为了娱乐或筑巢），通常需要7至30天。直径4英寸x高2英寸，带有3个大窗户和更宽的门，可提供更安全的出入口。较大的孔还使工作人员可以轻松地将垃圾放在庇护所内，以观察它们。