Skill Development: practice lumbar puncture (spinal tap), practice the epidural procedure, and use ultrasound. Features and Benefits: fluid can be added to tissue, durable tissue for multiple procedures, and position on its side or upright. Product Components: lumbar puncture/epidural trainer, replaceable tissue, syringe. Additional replaceable tissues sold separately. Size is 9 x 13 x 14 weight is 16 lbs.