Please donate to help me produce more free CAD Blocks... This particular one took from me 2 weeks designing it... https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=5R7US4DDVCE5N&lc=CA&item_name=Thepersistent¤cy_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted