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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🖤 Stop the drip, style your sink – Matte Black magic!

EFFORTLESS OPERATION - Quickly insert or remove the stopper to control water flow and prevent unwanted debris with zero hassle.
SLEEK MATTE BLACK FINISH - Elevate your kitchen’s aesthetic with a modern, fingerprint-resistant matte black design.
COORDINATED KITCHEN STYLE - Pairs flawlessly with InSinkErator flanges and air switch buttons for a unified, designer kitchen look.
PREMIUM GENUINE ACCESSORY - Crafted by America’s #1 disposal brand, ensuring top-tier quality and long-lasting performance.
SEAMLESS SINK COMPATIBILITY - Perfectly fits all InSinkErator disposals and standard 3.5-inch drains for effortless installation.

The InSinkErator STP-MTBLK Matte Black Sink Stopper is a precision-fit accessory designed for all InSinkErator garbage disposals and standard 3.5-inch kitchen drains. Crafted from durable plastic with a sleek matte black finish, it offers easy insertion and removal to block water and food particles effectively. As a genuine InSinkErator product, it guarantees premium quality and coordinates seamlessly with other disposal accessories, making it a must-have for a stylish, functional kitchen.

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Manufacturer	InSinkErator
Part number	STP-MTBLK
Item Weight	91 g
Product Dimensions	3.56 x 12.7 x 16.51 cm; 91 g
Item model number	STP-MTBLK, Matte Black
Color	Matte Black
Style	Stopper
Finish	Matte Black
Material	Plastic
Item Package Quantity	1
Included components	Sink Stopper
Batteries Included?	No
Batteries Required?	No

Insinkerator STP-MTBLK, Matte Black

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