Tender For supply of ultrasound guided single shot peripheral nerve blocking needle no. 20gx150 mm. spec: 1) used for peripheral nerve block by electro neuro stimulation. 2) the needle should be compatible with nerve stimulator. 3) insulated needle with a conducting tip. 4) echogenic coating in the whole shaft so that it can be detected in usg. 5) centimeter graduations to visualise the length of needle introduced. 6) transparent needle hub. 7) removable extension tube of length 50 cm. 8) electrical connection cable attached with the needle. 9) length150 mm, diameter 20g