Makartt Sandwich Dual Nail Forms for Builder & Poly Gel Extensions — 280pc 14 Sizes Clear Long Coffin Molds with Guides

Makartt Sandwich Dual Nail Forms are a two-piece top-and-bottom mold system that creates cleaner, reusable long coffin gel extensions with built-in guides to reduce reshaping and gel overflow.

These clear, reusable dual nail forms from Makartt are built for builder gel and poly nail gel techniques to simplify long-coffin and tapered shapes. The set includes 280 pieces across 14 sizes with measurement lines and an interlocking top-and-bottom design that holds product while curing, helping you get consistent length, a natural C-curve, and less filing. The flexible PMMA material cleans easily and withstands repeated use — a practical upgrade from paper forms for both salons and home users.

How do Makartt dual forms prevent messy gel overflow?

The sandwich design creates a sealed cavity around the nail where gel is applied, keeping product contained while you shape and cure. The top and bottom pieces lock together, which stabilizes the extension and reduces stray gel on the underside.

• Interlocking top and bottom molds secure gel during application
• Clear walls let you monitor thickness and placement
• Reduced need for cleanup or excess filing after curing

Will these forms fit different nail sizes and shapes?

Yes — the kit includes 14 distinct sizes in a 280-piece bulk pack to accommodate narrow to wide nail beds. Transparent scale lines on each mold help you pick the right size and reproduce identical lengths across fingers.

• 14 sizes to match varied natural nail widths
• Quantity supports full sets and repeated practice
• Guideline markings for consistent length and shape control

Can I use these with builder gel, poly gel, or acrylic systems?

Makartt dual forms are compatible with builder gel and poly nail gel and work with many acrylic techniques where a rigid reusable mold is preferred. For best results with bottle-style gels, use a peel-off base coat to adhere the mold to the natural nail as recommended.

• Designed for builder and poly gel workflows
• Works with acrylic applications that accept removable molds
• Reusable material tolerates cleaning between uses

How durable and eco-friendly are these reusable molds?

The kit uses high-transparency PMMA that resists cracking and keeps its shape through multiple sessions, offering a long-term alternative to disposable paper forms. Cleaning and reusing these molds reduces waste while saving money over time.

• Made from sturdy, clear PMMA for longevity
• Reusable design cuts down on single-use waste
• Maintains clarity and fit after repeated cleanings

Who is this for: Makartt Sandwich Dual Nail Forms are ideal for salon technicians, nail art students, and DIY enthusiasts who want faster, cleaner long-coffin and tapered extensions. If you regularly work with builder or poly gels and want more consistent C-curves, less filing, and molds that can be cleaned and reused, this 280-piece kit gives the size variety and guidance lines needed for repeatable professional results.