Flex provides safe, secure and fun enrichment programs for elementary, middle, and high school students. The Flex program is an easy alternative to PTAs who are trying to fund and manage after school programs with volunteers. It's Easy: We handle all the management. You need just one volunteer to promote your program. Variety & Quality: We can offer more. We’ve worked with over 400 vendors in 580 high-quality activities. Fundraising Opportunity: This won't cost your PTA money. In fact, most participating PTAs generate funds for their organization.