Connect sticks for double dishes shaker 4pcs/pK

Glassware Glassware diagonal，with anti-explosion film，including condenser(1700cm²), evaporating flask (NS 29/32) and receiving flask (KS 35/20)

Reaction block for 250ml round bottom flask (one flask capacity),suitable for 280℃ and 340°C series

Block for NDK200-1/2N, 6 x 24mm, 74mm deep, 76mm high