40oz Black to Rainbow Tumbler

40oz Black to Rainbow Tumbler Blank — Straw Lid & Handle — Laser Engraving Ready

Bold, dramatic, and absolutely breathtaking when engraved — this 40oz black to rainbow tumbler blank is unlike anything else in your lineup. The sleek black exterior reveals a stunning full-spectrum rainbow finish through laser engraving, creating vivid, eye-catching results that stop the scroll and sell themselves. Paired with a straw lid and handle for everyday usability, this blank is a showstopper from every angle.

Why You'll Love It

• 🌈 Rainbow plating revealed through engraving — full-spectrum color bursts through the black exterior for jaw-dropping, one-of-a-kind results
• 🥤 Straw lid included — sip-ready right out of the box
• 🖐️ Handle included — comfortable grip for all-day carry
• ✨ Laser engraving ready — clean, sharp results every time
• 🧊 Double-wall vacuum insulated stainless steel — keeps drinks cold up to 24 hours, hot up to 12 hours
• 💧 Sweat-proof exterior — powder-coated finish stays dry and clean in your hand
• ✅ BPA-free & eco-friendly — reusable and built to last
• 🚗 Fits most standard cup holders — commuter and travel friendly

Product Specifications

• Capacity: 40oz
• Material: 18/8 double-wall vacuum insulated stainless steel
• Finish: Black exterior with rainbow-plated interior revealed through engraving
• Lid: Straw lid included
• Handle: Yes
• Exterior: Sweat-proof powder-coated finish
• BPA-free: Yes
• Cup holder compatible: Yes, fits most standard sizes

Perfect For

Pride gifts, birthday gifts, best friend gifts, bold custom designs, and laser engravers looking for a high-impact blank that commands attention. The black-to-rainbow colorway is vibrant, versatile, and unlike anything else on the market — your customers will love it.

Shop OGGDesigns for premium laser-engraving blanks built for makers who demand quality.