School & Office Supplies
Bible Journaling Supplies
Art Supplies
Welcome to Mr. Pen!
Having firsthand experience teaching in at-risk schools in different parts of the United States, seeing the daily struggles of students and teachers, we, a few business-minded teachers, founded Mr. Pen with a simple purpose: serving the schools in our community by providing them with high quality and affordable school supplies and tools to help them in their efforts.
Our Goal:
We founded Mr. Pen with a simple purpose to serve the schools in our community by providing them with high quality and affordable school supplies and tools to help them in their efforts.
We want to ensure Mr. Pen can provide superior quality, the most affordable products, and amazing online shopping experience from the beginning.
As we aim to supply excellent conventional office and school products, our team of engineers and designers will do their best job to create innovative solutions for offices and schools to maximize efficiency and learning.
Are batteries included?
Yes
What type of battery does it take?
LR1130 button battery
Are the numbers bright enough?
Yes, they appear very well on the screen.
How many decimals does this calculator show?
11 decimals
Mr. Pen- Calculators
 Calculator |  Calculator |  Calculator |  Calculator | |
|---|---|---|---|---|
Customer Reviews | — | — | — | — |
Price | — | — | — | — |
Color | Blue | Black | Black | Black |
Number of Lines in Display | 1 | 2 | 2 | 1 |
Power Source | Solar and Battery | Battery | Solar and Battery | Solar and Battery |
Size | 4.6? X 2.6? X 0.4? | 6? X 3.3? X 0.6? | 6.37? X 3.15? X 0.64? | 5.7? X 4.7? |
Easy to Press | ? | ? | ? | ? |
Are batteries included?
Yes
What type of battery does it take?
LR1130 button battery
Are the numbers bright enough?
Yes, they appear very well on the screen.
How many decimals does this calculator show?
11 decimals
Mr. Pen- Calculators
Calculator | Calculator | Calculator | Calculator |
|---|---|---|---|
| Customer Reviews | |||
| — | — | — | — |
| Price | |||
| — | — | — | — |
| Color | |||
| Blue | Black | Black | Black |
| Number of Lines in Display | |||
| 1 | 2 | 2 | 1 |
| Power Source | |||
| Solar and Battery | Battery | Solar and Battery | Solar and Battery |
| Size | |||
| 4.6? X 2.6? X 0.4? | 6? X 3.3? X 0.6? | 6.37? X 3.15? X 0.64? | 5.7? X 4.7? |
| Easy to Press | |||
| ? | ? | ? | ? |
School & Office Supplies
Bible Journaling Supplies
Art Supplies
Welcome to Mr. Pen!
Having firsthand experience teaching in at-risk schools in different parts of the United States, seeing the daily struggles of students and teachers, we, a few business-minded teachers, founded Mr. Pen with a simple purpose: serving the schools in our community by providing them with high quality and affordable school supplies and tools to help them in their efforts.
Our Goal:
We founded Mr. Pen with a simple purpose to serve the schools in our community by providing them with high quality and affordable school supplies and tools to help them in their efforts.
We want to ensure Mr. Pen can provide superior quality, the most affordable products, and amazing online shopping experience from the beginning.
As we aim to supply excellent conventional office and school products, our team of engineers and designers will do their best job to create innovative solutions for offices and schools to maximize efficiency and learning.