120 PCS M2 Brass Knurled Standoff Male Female Round Column Pillar Spacer for PCB Board, M2 Option:M2 This is particularly beneficial for

This is particularly beneficial for fieldwork or situations where microscopes are required in different places

20         Dicotyledon Leaves         225 Bryophyllum leaf T

simple and convenient installation

more convenience and longer battery life than 9V battery

"name":"Monocular Pathological Microscope Kit with 50 Blank Slides"

120 PCS M2 Brass Knurled Standoff Male Female Round Column Pillar Spacer for PCB Board, M2 Option:M2 This is particularly beneficial forFeatures: 120 pcs screw threaded pillar stand off spacers of male or female type, with gold tone plated brass construction. Pillars threaded spacers are ideal for mounting between PCB circuit boards and machine boards. Package Includes:(Total: M2 120pcs) Size Quantity: M2 brass male female standoff(5mm + 3mm) 10pcs M2 brass male female standoff(10mm + 3mm) 10pcs M2 brass male female standoff(15mm + 3mm) 10pcs M2 brass male female standoff(20mm + 3mm)