.bs-wrap *{box-sizing:border-box;margin:0;padding:0} .bs-wrap{font-family:'Barlow',sans-serif;color:#1a1a1a;max-width:700px} .bs-badge{display:inline-block;background:#1a1a1a;color:#f0ebe3;font-size:11px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:3px;margin-bottom:16px} .bs-desc{font-size:15px;line-height:1.8;color:#444;margin-bottom:24px} .bs-desc strong{color:#1a1a1a;font-weight:500} .bs-divider{border:none;border-top:1px solid #e5e5e5;margin:24px 0} .bs-section-label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#999;font-weight:500;margin-bottom:12px} .bs-muscles{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px} .bs-muscle-tag{font-size:12px;font-weight:500;padding:5px 13px;border-radius:20px;background:#fff7ed;color:#92400e;border:1px solid #fcd9a0} .bs-muscle-tag.sec{background:#f5f5f5;color:#666;border-color:#e0e0e0} .bs-specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px} .bs-spec-card{background:#f7f7f5;border-radius:8px;padding:14px 16px} .bs-spec-label{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#999;margin-bottom:4px} .bs-spec-val{font-family:'Barlow Condensed',sans-serif;font-size:20px;font-weight:600;color:#1a1a1a} .bs-spec-sub{font-size:12px;color:#888;margin-top:3px} .bs-feat{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-top:1px solid #efefef} .bs-feat:last-child{border-bottom:1px solid #efefef} .bs-feat-icon{width:30px;height:30px;border-radius:50%;background:#fff0f0;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px} .bs-feat-icon svg{width:14px;height:14px;stroke:#dc2626;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round} .bs-feat-name{font-size:14px;font-weight:500;color:#1a1a1a;margin-bottom:3px} .bs-feat-desc{font-size:13px;color:#666;line-height:1.6} .bs-span2{grid-column:span 2} The BUILT Strength Throwback Series Booty Blaster is built around a 45-degree kickback motion with a Kevlar belt-driven selectorized system — delivering quiet, smooth resistance through the full glute extension arc without the cable slack or noise of conventional weight stack machines. The 45-degree angle is biomechanically optimized for maximum glute contraction at the top of each rep, where the muscle is shortest and hardest to load effectively. Adjustable upper body positioning, elbow pad height, and multiple footplate positions accommodate users of any height — locking in correct alignment before the first rep and maintaining it through the full range of motion. An integrated knee pad and non-slip contact surfaces keep the user stable and comfortable through every set. A 200 lb weight stack on a 615 lb machine base delivers the resistance range and structural stability this movement demands at a commercial level. Primary muscles targeted Gluteus Maximus Gluteus Medius Secondary muscles Hamstrings Hip Extensors Core Key features Kevlar Belt-Driven Selectorized System A Kevlar belt replaces conventional cables — delivering quieter operation, reduced stretch under load, and more consistent resistance feel through the full kickback arc without the slack or snap of standard cable systems. 45-Degree Kickback Angle The 45-degree movement angle is biomechanically optimized for the glute kickback — positioning the hip extension to maximize tension at the top of the movement where glute contraction is most complete. Full Adjustability for Every Body Upper body position, elbow pad height, and footplate position all adjust independently — dialing in correct hip, torso, and arm alignment for any user height before the set begins and maintaining it throughout. 200 lb Selectorized Weight Stack Pin-select resistance from light activation work up to 200 lb — covering the full training range from warm-up glute activation to heavy progressive loading for serious posterior chain development. Knee Pad & Non-Slip Contact Surfaces An integrated knee pad cushions and supports the working leg through each rep, while non-slip surfaces at all contact points keep the user stable and controlled regardless of load or training intensity. Specifications Dimensions (L × W × H) 88" × 43" × 71" 2235 × 1092 × 1803 mm Total Machine Weight 615 lb 279 kg Weight Stack 200 lb 91 kg · Kevlar belt-driven selectorized Kick Angle 45° Biomechanically optimized glute extension Condition New Throwback Series Resistance System Kevlar Belt Selectorized · Quiet operation Frame 11-Gauge (3mm) Steel