Artist's Open Lab This is an informal gathering of artists working together in a friendly and helpful atmosphere. Begin something new or work on an unfinished project. Adobe Art Center host painters providing tables, chairs and easels. Drop-in or punch card accepted. San Lorenzo - is for painters and those interested in exploring mixed media projects. Sessions facilitated by Rene Clair. We provide tables and chairs. Odorless thinners only. Pre-registration or punch card required (no drop-in). Punch cards must be pre-purchased and can be picked up at the District Offices-1099 E Street, Hayward or you may request one be mailed to you 510-881-6700. The card is good for two quarters starting with the quarter you purchased it at both the Monday and Thursday class. *$25 for 5 - visit punch card An informal gathering of painters working together in a friendly and helpful atmosphere. Adobe Art Cneter - The studio room provides tables, chairs and easels. San Lorenzo - the room provides tables and chairs.