Bernstein 9 281 sw spannfix bench mounted base with universal ball joint bernstein 9 281 sw p this spannfix bench mounted base from bernstein has a universal ball joint plus threaded pins m12 x 1 5 for permanent screwing p p the variable base enables exact secure positioning in all directions for opto electronic mesaurement devices monitors and monitoring cameras manufactured to a high standard including a stand consisting high quality poweder coated aluminium casting p bernstein