what are the dimensions? This seems to be a bit large

There are (2) dimensions. Inner seal is a 3 inch diameter seal, which sits inside the basket. The second dimension is the overall "lip" which seals the inner seal of the basket; 3 1/4 inch diameter.

why can this plug not be shipped to a California address?

I ship to California addresses. I live in California

Does this stopper fit down into the drain, or at the top of the drain so that it sticks out into the basin of the sink?

Inner flange diameter - 3 1/8". Outer diameter - barely greater than 3 1/4" (not a full 3 5/16"). It sticks up into the basin of my sink, and barely provides a seal so that the most minor bump to it results in a leak. The inner flange rests within the drain, but the out flange keeps it from resting down inside the drain.

Is this easier to pull out than the plastic stopper?

I have no problem pulling out the InSinkErator STP-SS what-so-ever. If you are having a problem breaking the suction, you can simply open drain function with this stopper.

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InSinkErator Sink Stopper for Garbage Disposals, Matte Black, STP-MTBLK

Product ID: 5486723

Details

Brand
InSinkErator
Color
Matte Black
Global Trade Identification Number
Material
Plastic
UPC
050375009528

🖤Matte Black finish for sleek style

♻️Durable stainless steel design

🛠️3.25-in x 1-in stopper size

£29.50

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Description

🖤 Stop the drip, style the sink — Matte Black perfection!

BUILT TO LAST - Crafted from durable stainless steel to withstand daily kitchen demands.
MATTE BLACK MAGIC - Elevate your kitchen’s aesthetic with a trendy, fingerprint-resistant finish.
EFFORTLESS CONTROL - Easy to insert and remove—perfect for quick water and food particle blocking.
COORDINATED KITCHEN CHIC - Matches your matte black faucet and disposal accessories for a unified look.
SEAMLESS FIT ZERO HASSLE - Precision-sized stopper fits all InSinkErator disposals effortlessly.

The InSinkErator Sink Stopper STP-MTBLK is a 3.25-inch by 1-inch durable stainless steel kitchen sink drain cover finished in matte black. Designed exclusively for InSinkErator garbage disposals, it prevents water and food particles from entering the drain while adding a sleek, modern touch to your kitchen. Easy to insert and remove, it complements matching disposal flanges and air switches, making it a must-have for style-conscious homeowners.

Specifications

ASIN	B002I631IW
Best Sellers Rank	#10,743 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Garbage Disposal Parts
Brand	InSinkErator
Brand Name	InSinkErator
Color	Matte Black
Customer Reviews	4.7 out of 5 stars 284 Reviews
Global Trade Identification Number	00050375009528
Included Components	Sink Stopper
Item Type Name	Fits Standard Kitchen Drain Size of 3 1/2 Inch Diameter
Manufacturer	InSinkErator
Manufacturer Part Number	STP-MTBLK
Manufacturer Warranty Description	Na.
Model Number	STP-MTBLK, Matte Black
Number of Items	1
Number of Packs	1
UPC	050375009528
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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£29.50

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews