The bottom end of the support base has M6 threaded holes, which can be easily fixed to various bases, optical tables and breadboards, all support bases are equipped with a screw knob to fix the support rod;All support bases are equipped with a positioning spring steel ball and screw knob to firmly and stably fix the support rod;The square groove design from the top to the bottom forms three-point coplanar stability when the screw knob is fixed;The combination of support bases of various lengths and support rods of different heights can reach any required height in various application fields.
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