Shell Thumb Screw Set
Make your Testa Seat uniquely yours. Add a vibrant pop of color or coordinate with your favorite cushion liner using these custom thumb screws. Whether you are personalizing your setup or just want a spare set on hand for travel, these colorful accents combine style with the tool-free function you love.
Key Benefits
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Express Your Style: Available in a range of curated colors to match your child’s personality or create a signature look for your seat.
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Tool-Free Function: Retains the signature ergonomic design for instant, hand-tightened assembly—no screwdriver required.
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Smart Backup: Perfect for keeping as a spare set in your travel bag, ensuring you are never caught without hardware on the go.
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Tactile Grip: Designed with a textured, easy-grip head that makes tightening secure and effortless.
Pairs well with
In stock! Ships within 5-15 business days.
30-day risk-free trial
1-Year Warranty
Shell Thumb Screw Set
30 Days Risk-Free
Try it at home and give it a test.
If it’s not perfect, just return it!
1-Year Warranty
Strong and sturdy, built to last here.
We cover our seats for a full happy year.
Fast Turnaround
Standard sizes 10 to 15 business days.
Custom 10 to 25 business days.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Featured collection
Floor Base & Footrest
One accessory, two essential uses. This unit attaches to your Testa Seat to create a stable, anti-tip foundation for safe floor play, or converts into a supportive footrest when used as a booster on a dining chair.
Adjustable Headrest
Create a relaxing and stable environment for your child, whether you are dining out or traveling. This adjustable headrest offers gentle neck support, reducing fatigue and helping your child maintain an upright, engaged posture so they can focus on family connection rather than just staying seated.
Shoulder Harness
Help your child sit tall and engage with confidence. This supportive harness provides gentle guidance for the upper body, reducing fatigue and promoting an upright, centered posture so they can focus on dining, learning, and family interaction.
Still Puzzled? We’re Here to Help!
Talk to our Testa-AI Assistant: No question is wrong! No question is silly! Ask about seats, or ask about fit! She will give you the truth and every fact.
Leave a Note: If the AI missed a piece, or you just want a chat from the soul and the heart, leave us a form! Our team will reach out to help.