These appear to be west elm circle cut out chairs. I don't think they in the online catalogue anymore, but I did a quick search and it looks like some sets are coming up for sale on other sites.

If you have long dinners, they are not particularly comfortable. I gave away a set years ago. Ok for quick meals.

Integrity Blinds a family-owned and operated business and has been committed to outfitting homes with stylish and functional blinds without compromising on aesthetics, quality, and design. We have a range of materials, colors, designs, and styles for window and door blinds at the most wallet-friendly prices and offer genuine advice to help our customers benefit from the best window treatments for their homes. We are reputed in our industry and emphasize wallet-friendly prices without compromising on quality. Known for Australian made blinds, Australian made curtains, You can visit our showroom or we will visit you at your home, office or business to discuss your curtaining needs with us.

https://www.ikea.com/au/en/p/fado-table-lamp-white-20455438/ comes in 17cm and 25cm sizes.