The Catmobile will be at Petsource, 141 Boston Rd., Marlborough, to offer low-cost spay/neuter services to cat owners. The Catmobile is operated by the Merrimack River Feline Rescue Society (MRFRS) and is staffed by a licensed veterinarian and two veterinary technicians. The package consists of spay/neuter, rabies vaccinations, exam, nail trim, treatment for fleas and ear mites. Spay package costs $100 and neuter package costs $75. The package is available to anyone and there is no qualification process; however reservations are required and can be made online at www.catmobile.org or by calling 978-465-1940.