KettleFlex Fitness is a kettlebell-focused training gym on El Cajon Boulevard in San Diego's College Area, founded in 2011 by Shneur — a former competitive powerlifter who trained under RKC-certified coach Al Lowrimore — at 6210 El Cajon Blvd in the 92115 ZIP. The programming centers on kettlebell swings, Turkish get-ups, cleans, presses, and snatches mixed with sandbag carries, medicine-ball work, suspension-trainer circuits, and barbell powerlifting. Classes cap at 10 participants to maintain one-on-one coaching attention on form and load progression, a capacity limit that separates the studio from the larger-format gyms that line the El Cajon Blvd corridor near SDSU. The facility includes a large well-ventilated indoor training floor with a shaded outdoor area, showers, free Wi-Fi, and a cold plunge added in late 2025 for post-training recovery. Post-workout protein and plant-based meals for members tracking macros run through nearby restaurants on the corridor, and Ben & Esther's Vegan Delicatessen in College Area supplies the high-protein sandwich and bowl options that fuel the strength-training demographic. The 30-day trial at $30 includes unlimited group classes and open-gym access with no automatic billing after expiration. The studio is LGBTQ+-affirming and transgender-inclusive, and programming scales for all fitness levels from first-time kettlebell users to competitive lifters. Parking includes a free lot and free street spaces along El Cajon Blvd, and the gym is available on ClassPass and Wellhub for drop-in bookings. Members who supplement kettlebell work with lifting accessories, wraps, and resistance bands source gear at Big 5 Sporting Goods in College Area, a sporting goods retailer two blocks east on the same El Cajon Boulevard corridor. Each class follows a coached warm-up, main training block, and cooldown structure, and Shneur programs every session to build strength through progressive overload rather than training to exhaustion.