Protect your slides in the ultra low temperature ranges (down to -80°C) with the True North® Slide Boxes. Durable polycarbonate construction and rugged stainless steel clasp/friction fit lid provide safe storage and transport of 3 x 1" (25 x 75mm) slides. Numbered, grooved slide slots separate slides, preventing slide contact. The Slide Box features temperature-resistant foam lining. Stacking feet maximize stability. Autoclavable.