If the seat height is set at 17.5", how many inches from the seat to the middle of the head rest? Typically, head rests way too high for short people.

I am 5' 3" and the bottom of the headrest starts at the base of my neck and covers the full back of my head. It adjusts forward and backward which is very handy. When I work I usually pull it way forward so that I look straight forward but can lean back on it which relaxes my neck. When I do a full recline I usually push the headrest back a bit.

Can I buy a replacement seat cushion?

As for the customer service including a replacement request or so, we can help you. Please contact us at customer@sidiz.com.

I'd like to use my own casters. What is the caster stem size for this chair?

Please refer to the dimensions of the casters below. - Diameter of the wheel: 2 inches - Diameter of the stem: 0.4 inches - Height of the stem: 0.9 inches

Tnb500hlda | Desertcart Norway

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Description

🪑 Elevate your workday with the chair that’s got 2 million reasons to impress!

AWARD WINNING SPINE SUPPORT - S-curve design syncs perfectly with your posture for all-day comfort
DURABLE SAFE CONSTRUCTION - ANSI/BIFMA certified with Greenguard safety, supporting up to 275 lbs
TAILORED FIT FOR EVERY BODY - Adjustable headrest, lumbar, armrests & seat depth for personalized ergonomics
GLOBAL TRUST PROVEN QUALITY - 2 million sold worldwide, trusted by multinational companies across 62 countries
EFFORTLESS ASSEMBLY VERSATILITY - 7-piece quick DIY setup, perfect for home office, gaming, or professional use

The SIDIZ T50 Ergonomic Office Chair is a globally acclaimed, award-winning seating solution designed for professionals who demand personalized comfort. Featuring over 10 adjustable ergonomic functions including headrest, lumbar support, and armrests, it supports users from 5'1" to 6'2" with a durable frame certified for safety and stability up to 275 lbs. With 2 million units sold across 62 countries and a sleek mesh design, it’s the ultimate blend of style, function, and reliability for home office and gaming setups alike.

Specifications

ASIN	B083FBNWCD
Additional Features	Adjustable Headrest, Adjustable Height, Adjustable Lumbar, Ergonomic, Reclining
Age Range Description	Adult
Arm Style	with-arms
Assembly Instructions Description	DIY partly assembled
Back Style	Mesh
Best Sellers Rank	#763,332 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,502 in Home Office Desk Chairs
Brand Name	SIDIZ
Chair Backrest Width	20.5 inches
Color	Grey
Cushion Style	Flat
Customer Reviews	4.2 4.2 out of 5 stars (1,419)
Fill Material	Foam
Finish Types	Painted
Form Factor	Modern,Tilt,Ergonomic
Frame Material Type	Plastic, steel
Furniture Base Movement	Swivel
Furniture Finish	Plastic
Included Components	no components included
Indoor Outdoor Usage	Indoor
Item Depth	28.9 inches
Item Dimensions	27 x 27 x 42 inches
Item Dimensions D x W x H	28.9"D x 28.9"W x 45.8"H
Item Type Name	TNB500HLDAGRAY
Item Weight	49 pounds
Leg Style	Tapered Leg
Manufacturer	SIDIZ
Manufacturer Part Number	TNB500HLDAGRAY
Manufacturer Warranty Description	3-year warranty for quality-related issues; details can be found on sidiz’s amazon profile.
Material Type	Mesh, fabric, sponge, PP, nylon, plastic, steel
Maximum Weight Recommendation	275 pounds
Model Name	Sidiz T50
Model Number	TNB500HLDAGRAY
Number of Items	1
Number of Packs	1
Pattern	Solid
Product Care Instructions	Wipe Clean
Reclining Position Count	2
Recommended Uses For Product	Office
Room Type	Office
Seat Back Interior Height	20.5 inches
Seat Depth	21.6 inches
Seat Height	21.5 inches
Seat Material	Foam
Shape	Rectangular
Size	28.9D x 28.9W x 45.8H Inch
Style Name	T50 White (Lumbar Support + Headrest)
Surface Recommendation	Hard Floor
Theme	Modern
Unit Count	1 Count
Upholstery Fabric Type	mesh

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